WARNING: THIS ARTICLE CONTAINS MAJOR SPOILERS OF THE FLASH & ARROW!Next week’s episode of The Flash (Season 2, Episode 22 “Invincible”) will feature Arrow‘s Katie Cassidy, who will be guest-starring as the Black Siren. Cassidy brilliantly portrayed Laurel Lance/Black Canary during Arrow‘s first four seasons from 2012 until this past April whenl she was shockingly killed off by a questionable “creative” decision that, so far, has done nothing to help the show. However, all was not lost for fans of Laurel as we soon found out that Katie Cassidy would guest star in an episode of The Flash, portraying the Black Canary’s Earth-2 counterpart: the Black Siren. Well, that time is almost upon us. With “Invincible” set to air next week, I thought now would be an appropriate time to look at how Black Siren will differ from her Arrow counterpart, the Black Canary!She’s a Metahuman

Canary Cries: Black Canary/Black Siren (CW)

Thanks to a combination of next week’s episode promo and these amazing new photos released by the CW, we now know that, unlike the Black Canary, the Black Siren will be a metahuman. In the comic books, Black Canary is known for both her incredible fighting skills and her superpower, the “Canary Cry” – a high-powered sonic scream that can incapacitate anyone in the surrounding area and shatter glass. While Laurel’s Black Canary on Arrow was human and instead, used a sonic device to create this effect, it looks like The Flash‘s Black Siren will mirror the comic books and thus, her cry will be a metahuman ability. Just look at how her hair blows back. Furthermore, the effects coming from her mouth in the promo below reinforce this. In fact, it’s a similar effect to the one used for Silver Banshee’s scream in Supergirl.I applaud Arrow for choosing to keep Laurel human for her time on the show because now that they’ve incorporated The Flash into their universe, it’s hard to keep from going down the more fantastical route. However, I know there are many out there (myself included) that are eager to see the full Canary Cry from the comics come to life and when the Black Siren makes her way onto our screens, that’s exactly what we’re going to see!She’s a Villain

Friend or Foe?: The Flash meets the Black Siren(CW)

Unlike the hero she portrayed on Arrow, Cassidy’s Black Siren will be a villain. Much like the situation with Caitlin and her Killer Frost doppelganger, it seems that Earth-2 is just overflowing with evil doppelgangers. It will be intriguing to see Black Siren go up against the Flash and, perhaps more importantly, how Barry will react to seeing the face of his heroic fallen friend now wreaking havoc on Central City. As the official synopsis for the episode reveals :

KATIE CASSIDY GUEST STARS AS BLACK SIREN — After Zoom (guest star Teddy Sears) unleashes an army of Earth-2 meta-humans on Central City, Barry (Grant Gustin) is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren (guest star Katie Cassidy). Meanwhile, Wally (Keiynan Lonsdale) takes to the streets to help The Flash stop the meta-humans, which worries Joe (Jesse L. Martin). Iris (Candice Patton) and Henry (guest star John Wesley Shipp) are concerned about Barry taking on Zoom. Jesse Warn directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Brooke Roberts & David Kob (#222). Original airdate 5/17/2016.

I am incredibly excited to see Katie Cassidy portray an evil incarnation of her Arrow counterpart. For years, Laurel was the most under-appreciated character on Arrow and when she had finally come into her own as the Black Canary, she was taken from us. Katie Cassidy did a phenomenal job of bringing Laurel/Black Canary to life on Arrow and I have no doubt that she will do the same with Black Siren on The Flash. Even though it’s the evil Earth-2 version, the Canary will cry again!Full Credit to The CW for the Images and Synopsis. The Flash, Season 2, Episode 22 “Invincible” airs on Tuesday Night on The CWAre you excited to see Katie Cassidy’s return to the CW in The Flash? Or do you wish she was still on Arrow instead? Let me know in the comments!